IEEE NY JOINT MTT AP PHO & NANO CHAPTER - SEMINAR: Driven quantum materials under the x-ray spotlight

#UltrashortElectromagneticFields #QuantumMaterials #UltrafastX-raySpectroscopicMethods #Time-ResolvedX-rayAbsorption(trXAS) #Time-ResolvedResonantInelasticX-rayScattering(trRIXS) #Light-DrivenMottInsulators #TransientEffectiveElectronicInteractions #Many-BodyState #CondensedMatterPhysics #ElectronCorrelations #QuantumPhysics #MaterialScience #UltrafastPhenomena #Spectroscopy #X-rayScattering #ElectronicProperties #QuantumStateControl #LightMatterInteraction #ASRC #PhotonicsInitiative
Share

Abstract – Over the last two decades, intense ultrashort electromagnetic fields have enabled observing and controlling a number of emergent states in quantum materials. Some of most spectacular light-induced phenomena, such as superconducting-like phases, transient charge density wave ordering, and excitonic condensation, are found to occur in materials dominated by strong electronic correlations with a large susceptibility to external stimuli. A major need towards developing a microscopic understanding of these states of matter is the capability to directly measure their transient electronic dynamics and effective interactions.

 

In this talk, I will show how novel ultrafast x-ray spectroscopic methods, such as time-resolved x-ray absorption (trXAS) and time-resolved resonant inelastic x-ray scattering (trRIXS), enable tackling these questions with unprecedented detail [1]. I will particularly focus on light-driven Mott insulators, which are key to the emergence of light-induced superconductivity and are theoretically argued to host other exotic ordering phenomena upon photoexcitation, such as h-pairing condensation. I will discuss how trXAS allows to accurately determine transient effective electronic interactions in 1D and 2D copper oxides, and how we can fully reconstruct the driven many-body state from the transient absorption spectrum [2,3]. Further, I will discuss how advances in trRIXS [1,4,5] enable mapping the excitation spectrum of the driven state, and the implications of these experiments for the realization of new light-induced states in photoexcited Mott insulators.

 

[1] M Mitrano & Y. Wang, Commun. Phys. 3, 184 (2020).

[2] D. R. Baykusheva, et al., Phys. Rev. X 12, 011013 (2022).

[3] D. R. Baykusheva, et al., forthcoming (2023).

[4] M. Mitrano, et al., Sci. Adv. 5, eaax3346 (2019).

[5] Y. Wang, et al., Commun. Phys. 4, 212 (2021).


  Date and Time

  Location

  Hosts

  Registration


  • Start time: 16 Jan 2024 11:30 AM
  • End time: 17 Jan 2024 12:30 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
  • Add_To_Calendar_icon Add Event to Calendar
If you are not a robot, please complete the ReCAPTCHA to display virtual attendance info.
  • ASRC Auditorium
  • 85 St Nicholas Terrace
  • New York, New York
  • United States 10031
  • Contact Event Host
  • Starts 09 January 2024 02:30 PM
  • Ends 16 January 2024 07:30 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
  • No Admission Charge

  Speakers

MATTEO MITRANO of Harvard University

Biography:

Prof. Matteo Mitrano is an experimental condensed matter physicist. He is interested in investigating fundamental problems in quantum materials, as well as in controlling their nonequilibrium properties with light. The goal of his research is to discover novel, emergent physical phenomena and solve long-standing problems in the physics of interacting electron systems. He makes use of advanced ultrafast optical methods, e.g. THz time-resolved spectroscopy, and of ultrafast scattering probes (hard/soft X-rays, and electrons) both in his laboratory and at large-scale facilities (e.g. free electron lasers).

Address:United States